WO2019029813A1 - Clamping frame and transport device for transporting substrates - Google Patents

Clamping frame and transport device for transporting substrates Download PDF

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Publication number
WO2019029813A1
WO2019029813A1 PCT/EP2017/070333 EP2017070333W WO2019029813A1 WO 2019029813 A1 WO2019029813 A1 WO 2019029813A1 EP 2017070333 W EP2017070333 W EP 2017070333W WO 2019029813 A1 WO2019029813 A1 WO 2019029813A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
clamping member
frame
frame according
substrates
Prior art date
Application number
PCT/EP2017/070333
Other languages
German (de)
French (fr)
Inventor
Marc Schuster
Original Assignee
Gebr. Schmid Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gebr. Schmid Gmbh filed Critical Gebr. Schmid Gmbh
Priority to CN201780095709.6A priority Critical patent/CN111699765B/en
Priority to EP17758083.4A priority patent/EP3666049B1/en
Priority to PCT/EP2017/070333 priority patent/WO2019029813A1/en
Publication of WO2019029813A1 publication Critical patent/WO2019029813A1/en

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/0061—Tools for holding the circuit boards during processing; handling transport of printed circuit boards
    • H05K13/0069—Holders for printed circuit boards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
    • H01L21/67721—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations the substrates to be conveyed not being semiconductor wafers or large planar substrates, e.g. chips, lead frames
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
    • H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
    • H01L21/68714—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
    • H01L21/68728—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a plurality of separate clamping members, e.g. clamping fingers

Definitions

  • the invention relates to a clamping frame for the transport of thin sheet-like substrates, in particular printed circuit boards, and a transport device equipped therewith.
  • the thin sheet substrates In order to avoid damage to the surfaces of the thin sheet substrates, they can be held by a holder and / or holding frame and transported through this together with this holder and / or holding frame through a treatment device.
  • a holder and / or holding frame In order to avoid damage to the surfaces of the thin sheet substrates, they can be held by a holder and / or holding frame and transported through this together with this holder and / or holding frame through a treatment device.
  • different embodiments of the holder and / or holding frame are known.
  • DE 10 2007 038 1 16 A1 discloses a transport device in which the substrate is held in a force-locking manner along a body edge between two holding parts.
  • the frictional connection can be made by a screw or by magnets.
  • the holding parts that hold the substrate are connected to the transport device, which supplies the substrate to a treatment device.
  • DE 10 2009 049 905 A1 a holding frame is described which holds substrates by means of a continuous clamping rod, which has clamping noses, and can transport the substrate in connection with transport chains.
  • DE 101 31 945 A1 discloses a transport device in which the substrates are held in U-shaped one-piece clamping units. The required clamping effect is achieved by the resilient property of the U-shape of the clamping units.
  • the invention has for its object to provide a clamping frame for secure holding of thin sheet substrates, in particular printed circuit boards and the like., Which can be implemented with relatively little effort, and to provide a transport device equipped therewith.
  • the clamping frame has at least one clamping holding means and a frame body with at least one clamping strip.
  • the clamping frame may comprise a plurality of clamp holding means, such as three, four, eight or more than eight clamp holding means.
  • the clamp holding means comprises a first clamping member, a second clamping member, a hinge and an elastic member.
  • the first clamping member has a clamping portion and an operating portion.
  • the hinge divides the first clamping member into the clamping portion and the operating portion.
  • the second clamping member is arranged on the terminal block of the frame body.
  • the clamping portion of the first clamping member is opposite to the second clamping member and cooperates with this to form an intermediate clamping gap.
  • the hinge pivotally connects the second clamping member to the first clamping member, e.g. by means of a frictional or positive connection.
  • the elastic member biases the clamping portion of the first clamping member against the second clamping member clamping gap narrowing.
  • the elastic element a corresponding biasing force directly on the clamping portion or alternatively on the Exercise operating section of the first Klennnnglieds. In the latter case, the biasing force is transmitted via the rotary joint from the operating section to the clamping section.
  • the clamp holding means may comprise a receptacle for the elastic element.
  • the invention enables a functionally reliable handling of substrates and, as required, a simplified installation of the clamping frame, a reduction in manufacturing costs and a reduction in the number of components.
  • the substrate may e.g. be held by a positive connection in the nip.
  • the clamping force may in particular be the prestressing force generated by the elastic element.
  • a substrate contact surface of the clamping portion of the first clamping member and / or a substrate contact surface of the second clamping member which comes into mechanical contact with the substrate can be optimized in shape.
  • the substrate In a non-clamping state of the clamp holding means, the substrate can be inserted into and removed from the clamp frame, and in a clamped state of the clamp holding means, the substrate can be clamped in the clamp frame.
  • the clamping section or the operating section of the first clamping member In order to transfer the clamping holding means from the clamping state to the non-clamping state, the clamping section or the operating section of the first clamping member can be acted upon by a counter force clamping gap enlarging counteracting the biasing force of the elastic member.
  • This counterforce can be exerted on the terminal holding means by an operator and / or a device.
  • the first clamping member optionally have a specially designed actuating surface. This actuating surface can facilitate the exercise of the required counterforce and prevent accidental slipping.
  • the rotary joint releasably connects the first clamping member to the second clamping member.
  • the detachable connection allows easy installation or a simple replacement of the first clamping member.
  • Another advantage is that not all second clamping members must be connected to a first clamping member as required and / or the number and / or configuration of the first clamping member can be changed. As a result, for example, the number of first Klennnnglieder can be adapted to different substrate sizes by first clamping members are removed, which have no contact with the substrate, or additional first clamping members are attached.
  • the number of first clamping members on the respective terminal block can thus be variably adapted to the requirements of holding and transporting the substrate and / or to the requirements of a subsequent process that the substrate passes through.
  • the second clamping members, to which no first clamping member is attached, can support the substrate as supports in the case of a substantially horizontal transport.
  • the rotary joint has a rotary shaft-like projection on the one clamping member and a corresponding recess on the other clamping member.
  • the rotary joint may be formed by an extension, which has a sectionally circular cross-section. The extension may be located on the first clamping member and then fits into a corresponding recess of the second clamping member or the clamping frame. Alternatively, it may be located on the second clamping member or at another location of the clamping frame and fit into a corresponding recess of the first clamping member.
  • the second clamping member is releasably connected to the terminal block.
  • the second clamping member attached to the terminal block and also removed again. The use of components is thereby optimized.
  • the second clamping member is an integral portion of the terminal block. This minimizes the number of required individual components.
  • the frame body has at least one connecting strip, which is multi-part and adjustable in length, and / or the terminal block is multi-part and adjustable in length.
  • the clamping frame can be adjusted in size and adapted to substrates of different sizes to hold them.
  • the multipart terminal block and / or multipart Ge connection bar may have an expansion joint, which allows a thermal length compensation if necessary.
  • the material of the connecting strip and / or terminal strip can be, for example, a plastic, in particular PVC, or a metal, in particular titanium, or a combination of such materials.
  • the elastic element is a spring or a rubber element.
  • the spring may in particular be a helical spring or spiral spring.
  • the rubber element may in particular be an elastic band or rubber band.
  • the rubber element is an O-ring.
  • the cross section of the O-ring may have a shape adapted to its function.
  • the first and / or the second clamping member has a receiving groove for the elastic element, e.g. for receiving an O-ring as an elastic element. This assists a secure hold of the elastic element on the respective clamping member.
  • the receiving groove may have a shape which is adapted to the shape of the cross section and / or to the shape of the bearing surface of the elastic element.
  • the clamping frame is rectangular.
  • two connecting strips are arranged opposite each other and there are two terminal strips arranged opposite one another. These four strips together form the clamping frame.
  • the second clamping members are oriented towards the opposite terminal block by e.g. protrude into an opening formed by the clamping frame of the relevant terminal block. Thus, a substrate can be held in the opening.
  • the two terminal strips have a plurality of the second clamping members, wherein the second clamping members are oriented in the direction of the opposite terminal block.
  • the first clamping members are separate components and are attached to all or part of the second clamping members of the clamping bars to form the associated terminal holding means.
  • the transport device has at least one clamping frame according to the invention and a frame conveyor, which in the transport direction of the sub-frame. strate and connected to the clamping frame.
  • the substrate can be fed to and / or passed through a processing plant or processing station in a particularly efficient manner.
  • FIG. 1 is a perspective view of a clamping frame with terminal holding means
  • FIG. 2 is a fragmentary view of a portion A of FIG. 1 showing a single clamp holding means.
  • Fig. 3 is a side view of the terminal holding means of Fig. 2 and
  • FIG. 4 is a fragmentary perspective view of a variant of the clamping frame of
  • FIGS. 1 to 3 show a clamping frame in which a substrate 6 is held.
  • the clamping frame is part of a transport device of conventional design, which is not shown here.
  • the clamping frame has a frame body 1, which has at least one terminal strip 3. In the embodiment shown, the clamping frame on two terminal strips 3.
  • the clamping frame has at least one clamping holding means 2 for holding the substrate 6, the example shown having a plurality of clamping holding means 2.
  • the respective terminal holding means 2 is composed of a first clamping member 8, a second clamping member 9, a hinge and an elastic member 14, wherein the hinge of associated parts of the first and second clamping member 8, 9 is formed.
  • the first clamping member 8 has a clamping portion 10 and an operating portion 1 1.
  • the second clamping member 9 is on the terminal block. 3 arranged the frame body 1 and the clamping portion 10 of the first clamping member 8 is opposite to the second clamping member 9, wherein the second clamping member 9 cooperates with the first clamping member 8.
  • the hinge pivotally connects the second clamping member 9 with the first clamping member 8 to form a clamping gap 7.
  • the elastic member 14 biases the clamping portion 10 of the first clamping member 8 against the second clamping member 9 before clamping gap.
  • a plurality of second clamping members 9 integrally formed in a row next to each other at each terminal block 3.
  • the second clamping members 9 have a width B and have a distance C from each other, which is preferably greater than the width B.
  • the rotary joint constitutes a releasable connection between the first clamping member 8 and the second clamping member 9.
  • the rotary joint includes a shaft extension 12 on the first clamping member 8 and a corresponding recess 13 on the second clamping member 9 into which the extension 12 fits.
  • the hinge or its extension 12 divides the first clamping member 8 in the clamping portion 10 and the operating portion 1 first
  • the rotary shaft-like extension 12 has the shape of a circular arc in cross-section and projects axially beyond the two outer flanks of the first clamping member 8.
  • the recess 13 has a corresponding circular arc-shaped cross-section.
  • the corresponding recess 13 is provided by a over the length of the terminal block 3 across away formed in the terminal block 3 groove.
  • the frame body 1 in the embodiment shown in FIGS. 1 to 3 is rectangular and has two mutually opposite connecting strips 4. These are connected in one piece with the two mutually opposite terminal strips 3, for example.
  • the connecting strips 4 are preferably composed of several telescopically extendable and retractable parts and thereby adjustable in length.
  • each connecting strip 4 has an expansion joint 5 in order to compensate for thermal expansion effects of the connecting strips 4.
  • at least one clamping strip 3 may be designed in several parts in an analogous manner in order to be able to variably change their length.
  • the elastic element 14 is an O-ring made of rubber.
  • the elastic member 14 biases the clamping portion of the first clamping member 8 against the second clamping member 9 by a biasing force clamping gap narrowing.
  • a receiving groove 15 is mounted, which prevents the O-ring from slipping off the terminal holding means 2 and thereby no longer bias the terminal holding means 2.
  • the O-ring lies in a plane E1 which is oriented obliquely to a substrate surface or frame opening plane E2, ie. H. with this one angle Ct greater than 0 ° and less than 90 °, wherein the angle Ct z. B. is in the range between 60 ° and 86 °.
  • first clamping members 8 in the illustrated embodiment of FIGS. 1 to 3 are designed as separate components and for each second clamping members 9 of the clamping frame, a first clamping member 8 is mounted.
  • the separate first clamping members 8 are each held by the elastic member 14 to the associated second clamping member 9.
  • the clamping frame forms an opening in which the substrate 6 is held.
  • the second clamping members 9 of the clamping holding means 2 are oriented so that they protrude into the opening and point in the direction of the opposite terminal strip 3.
  • the substrate 6 is securely held in the nip 7 of the clamp holding means 2 by the clamping force applied by the elastic member 14.
  • one of the biasing force of the elastic member 14 counteracting counterforce on the operating section 1 1 is exercised.
  • the first clamping member 8 relative to the second Clamping member 9 pivoted clamping gap enlarging and the substrate 6 can be removed from the opened nip 7 and inserted into this.
  • the second clamping member 9 and / or the first clamping member 8 may have a specially designed shape for. B. by contact surfaces with which the terminal holding means 2 comes to rest against the substrate 6, are optimized in shape.
  • the second clamping member 9 has a contact section 16 which reduces the contact surface to the substrate 6.
  • the first clamping member 8 is designed such that its contact with the substrate 6 is exactly opposite to that of the contact portion 16 with the substrate 6. For this purpose, a beak-shaped configuration of the first clamping member 8 is advantageous, as can be seen from Fig. 3.
  • Fig. 4 is a detail of a variant of the clamping frame of FIGS. 1 to 3 is shown in perspective view, wherein for easier understanding of identical or functionally equivalent elements, corresponding reference numerals are used and in this regard also to the above explanations to the embodiment of FIGS 3 can be referenced.
  • a shaft shaft-like projection 12 'of the rotary joint modified in this respect does not protrude beyond the flanks of the first clamping member 8'.
  • the width of the elevation 18 in the region of the width of the second clamping members 9 '.
  • first clamping member 8 ' for forming a corresponding clamping holding means 2'. mounted, the latter having a receiving groove 17 for the elastic element 14. In the embodiment shown, the O-ring is held in this receiving groove 17 as the elastic element 14.
  • the respective second clamping members 9 ' for which no first clamping member 8' is mounted, serve a clamped held substrate 6 as a substantially horizontal support.
  • the second Klennnnglieder are realized as separate from the Klennnnrau components that can be releasably connected to the terminal block.
  • the use of components can be optimized by only the actually required for substrate clamping purposes second clamping members are mounted on the terminal block.
  • a spring such as. B. a tension, compression or a coil spring, be.
  • the clamping frame according to the invention is suitable and adapted to be connected to a conventional frame conveyor and thus to provide a transport device for the substrate.
  • the terminal block or the connecting bar having a connecting means to the clamping frame to z. B. to be able to mount circulating transport chains, so that the transport chains the clamping frame together with the substrate in an example. transport horizontal transport direction.
  • the invention provides a clamping frame for a functionally reliable handling of substrates, which in a very advantageous manner requires only a small number of easily manufactured components and thus permits simplified assembly and modification of the clamping frame as required.
  • the manufacturing cost can be kept low due to the small number of components.

Abstract

The invention relates to a clamping frame for a transport device for transporting thin planar substrates, in particular printed circuit boards. The clamping frame according to the invention enables functionally reliable handling of substrates (6) and a reduction of the production costs and simplified assembly because of the reduction in the number of components. The clamping frame has at least one clamping strip (3), which has at least one clamping holding means (2). The clamping holding means is composed of a first clamping element (8) and a second clamping element (9), the second clamping element being arranged on the clamping strip of the frame body and lying opposite the first clamping element. The two clamping elements are pivotally connected by means of a pivot joint (12, 13), a clamping gap (7) being formed between the two clamping elements. Furthermore, the clamping holding means has an elastic element (14), which preloads the first clamping element toward the second clamping element in such a way that the clamping gap is narrowed.

Description

Klemmrahnnen und Transportvorrichtung  Clamping brackets and transport device
zum Transport von Substraten  for transporting substrates
Die Erfindung betrifft einen Klemmrahmen zum Transport von dünnen flächigen Substraten, insbesondere Leiterplatten, und eine damit ausgerüstete Transportvorrichtung. The invention relates to a clamping frame for the transport of thin sheet-like substrates, in particular printed circuit boards, and a transport device equipped therewith.
Bei der Bearbeitung von dünnen flächigen Substraten wie beispielsweise Leiterplatten in der Leiterplattenindustrie oder Dünnschichtsolarzellen findet eine Behandlung oftmals in einer nasschemischen Prozesslinie statt, z.B. für einen Ätzprozess. Dabei ist es aus der EP 0 718 871 A2 bekannt, die Substrate auf Rollen oder Walzenbahnen aufzulegen und durch eine Behandlungseinrichtung hindurch zu transportieren. Mit zunehmend dünner werdenden Substraten, insbesondere Leiterplatten, die schon folienartig sind, wird dies jedoch immer schwieriger. Die Substrate weisen nicht genügend Eigenstabilität auf oder können aufgrund des sehr geringen Gewichts durch Besprühen mit Ätzflüssigkeit oder dgl. bewegt oder verschoben werden. Des Weiteren sind die Oberflächen mancher Substrate derart empfindlich, dass sie bereits durch das Aufliegen auf den Rollen beschädigt werden könnten. In the processing of thin sheet substrates such as circuit boards in the printed circuit board industry or thin film solar cells, treatment often takes place in a wet chemical process line, e.g. for an etching process. It is known from EP 0 718 871 A2 to place the substrates on rollers or roller conveyors and to transport them through a treatment device. With increasingly thinner substrates, in particular printed circuit boards, which are already film-like, but this is becoming increasingly difficult. The substrates do not have sufficient intrinsic stability or can be moved or displaced due to the very low weight by spraying with etching liquid or the like. Furthermore, the surfaces of some substrates are so sensitive that they could already be damaged by resting on the rollers.
Um eine Beschädigung der Oberflächen der dünnen flächigen Substrate zu vermeiden, können diese von einem Halter und/oder Halterahmen gehalten und zusammen mit diesem Halter und/oder Halterahmen durch eine Behandlungseinrichtung hindurch transportiert werden. Hierfür sind unterschiedliche Ausführungsformen des Halters und/oder Halterahmens bekannt. In order to avoid damage to the surfaces of the thin sheet substrates, they can be held by a holder and / or holding frame and transported through this together with this holder and / or holding frame through a treatment device. For this purpose, different embodiments of the holder and / or holding frame are known.
So ist in der DE 10 2007 038 1 16 A1 eine Transportvorrichtung offenbart, bei der das Substrat entlang einer Körperkante zwischen zwei Halteteilen kraftschlüssig gehalten wird. Die kraftschlüssige Verbindung kann durch eine Verschraubung oder mittels Magneten hergestellt werden. Die Halteteile, die das Substrat halten, sind mit der Transportvorrichtung verbunden, die das Substrat einer Behandlungseinrichtung zuführt. Thus, DE 10 2007 038 1 16 A1 discloses a transport device in which the substrate is held in a force-locking manner along a body edge between two holding parts. The frictional connection can be made by a screw or by magnets. The holding parts that hold the substrate are connected to the transport device, which supplies the substrate to a treatment device.
In der DE 10 2009 049 905 A1 ist ein Halterahmen beschrieben, der Substrate mittels einer durchgehenden Klemmstange, die Klemmnasen aufweist, hält und in Verbindung mit Transportketten das Substrat transportieren kann. Des Weiteren ist in der DE 101 31 945 A1 eine Transportvorrichtung offenbart, bei der die Substrate in U-förmigen einteiligen Klemmeinheiten gehalten werden. Die benötigte Klemmwirkung wird durch die federnde Eigenschaft der U-Form der Klemmeinheiten erreicht. In DE 10 2009 049 905 A1, a holding frame is described which holds substrates by means of a continuous clamping rod, which has clamping noses, and can transport the substrate in connection with transport chains. Furthermore, DE 101 31 945 A1 discloses a transport device in which the substrates are held in U-shaped one-piece clamping units. The required clamping effect is achieved by the resilient property of the U-shape of the clamping units.
In der DE 43 37 81 1 A1 ist eine Transportvorrichtung offenbart, bei der die Substrate mittels einer Andruckfeder gegen eine Anlageplatte geklemmt werden. In DE 43 37 81 1 A1 a transport device is disclosed in which the substrates are clamped by means of a pressure spring against a contact plate.
Der Erfindung liegt die Aufgabe zugrunde, einen Klemmrahmen zum sicheren Haltern von dünnen flächigen Substraten, insbesondere Leiterplatten und dgl., der sich mit vergleichsweise geringem Aufwand realisieren lässt, und eine damit ausgerüstete Transportvorrichtung bereitzustellen. The invention has for its object to provide a clamping frame for secure holding of thin sheet substrates, in particular printed circuit boards and the like., Which can be implemented with relatively little effort, and to provide a transport device equipped therewith.
Gelöst wird diese Aufgabe von der Erfindung durch die Bereitstellung eines Klemmrahmens mit den Merkmalen des Anspruchs 1 sowie einer Transportvorrichtung mit den Merkmalen des Anspruchs 10. Vorteilhafte sowie bevorzugte Ausgestaltungen der Erfindung sind Gegenstand der weiteren Ansprüche. This object is achieved by the invention by providing a clamping frame with the features of claim 1 and a transport device having the features of claim 10. Advantageous and preferred embodiments of the invention are the subject of the other claims.
Erfindungsgemäß weist der Klemmrahmen mindestens ein Klemmhaltemittel und einen Rahmenkörper mit mindestens einer Klemmleiste auf. Insbesondere kann der Klemmrahmen eine Mehrzahl von Klemmhaltemittel aufweisen, wie drei, vier, acht oder mehr als acht Klemmhaltemittel. Das Klemmhaltemittel umfasst ein erstes Klemmglied, ein zweites Klemmglied, ein Drehgelenk und ein elastisches Element. Das erste Klemmglied weist einen Klemmabschnitt und einen Bedienabschnitt auf. Das Drehgelenk unterteilt das erste Klemmglied in den Klemmabschnitt und den Bedienabschnitt. Das zweite Klemmglied ist an der Klemmleiste des Rahmenkörpers angeordnet. Der Klemmabschnitt des ersten Klemmglieds liegt dem zweiten Klemmglied gegenüber und wirkt mit diesem unter Bildung eines zwischenliegenden Klemmspalts zusammen. Das Drehgelenk verbindet schwenkbeweglich das zweite Klemmglied mit dem ersten Klemmglied, z.B. mittels einer kraftschlüssigen oder formschlüssigen Verbindung. According to the invention, the clamping frame has at least one clamping holding means and a frame body with at least one clamping strip. In particular, the clamping frame may comprise a plurality of clamp holding means, such as three, four, eight or more than eight clamp holding means. The clamp holding means comprises a first clamping member, a second clamping member, a hinge and an elastic member. The first clamping member has a clamping portion and an operating portion. The hinge divides the first clamping member into the clamping portion and the operating portion. The second clamping member is arranged on the terminal block of the frame body. The clamping portion of the first clamping member is opposite to the second clamping member and cooperates with this to form an intermediate clamping gap. The hinge pivotally connects the second clamping member to the first clamping member, e.g. by means of a frictional or positive connection.
Das elastische Element spannt den Klemmabschnitt des ersten Klemmglieds gegen das zweite Klemmglied klemmspaltverengend vor. Dazu kann das elastische Element eine entsprechende Vorspannkraft direkt auf den Klemmabschnitt oder alternativ auf den Bedienabschnitt des ersten Klennnnglieds ausüben. In letzterem Fall wird die Vorspannkraft über das Drehgelenk vom Bedienabschnitt auf den Klemmabschnitt übertragen. Das Klemmhaltemittel kann eine Aufnahme für das elastische Element aufweisen. The elastic member biases the clamping portion of the first clamping member against the second clamping member clamping gap narrowing. For this purpose, the elastic element a corresponding biasing force directly on the clamping portion or alternatively on the Exercise operating section of the first Klennnnglieds. In the latter case, the biasing force is transmitted via the rotary joint from the operating section to the clamping section. The clamp holding means may comprise a receptacle for the elastic element.
Damit ermöglicht die Erfindung eine funktionssichere Handhabung von Substraten sowie je nach Bedarf eine vereinfachte Montage des Klemmrahmens, eine Reduktion der Herstellkosten und eine Reduktion der Bauteilanzahl. Thus, the invention enables a functionally reliable handling of substrates and, as required, a simplified installation of the clamping frame, a reduction in manufacturing costs and a reduction in the number of components.
Das Substrat kann z.B. durch eine kraftschlüssige Verbindung im Klemmspalt gehalten werden. Die Klemmkraft kann insbesondere die durch das elastische Element erzeugte Vorspannkraft sein. Um die Wirkung der kraftschlüssigen Verbindung zwischen dem Substrat und den beiden Klemmgliedern zu verbessern, kann bei Bedarf eine Substratkontaktfläche des Klemmabschnitts des ersten Klemmglieds und/oder eine Substratkontaktfläche des zweiten Klemmglieds, die in mechanischen Kontakt mit dem Substrat kommt, in ihrer Form optimiert werden. The substrate may e.g. be held by a positive connection in the nip. The clamping force may in particular be the prestressing force generated by the elastic element. In order to improve the effect of the frictional connection between the substrate and the two clamping members, if necessary, a substrate contact surface of the clamping portion of the first clamping member and / or a substrate contact surface of the second clamping member which comes into mechanical contact with the substrate can be optimized in shape.
In einem nicht klemmenden Zustand des Klemmhaltemittels kann das Substrat in den Klemmrahmen eingesetzt und wieder aus ihm herausgenommen werden und in einem klemmenden Zustand des Klemmhaltemittels kann das Substrat im Klemmrahmen festgeklemmt gehalten werden. Um das Klemmhaltemittel vom klemmenden Zustand in den nicht klemmenden Zustand überzuführen, kann der Klemmabschnitt oder der Bedienabschnitt des ersten Klemmglieds mit einer Gegenkraft klemmspaltvergrößernd beaufschlagt werden, die der Vorspannkraft des elastischen Elements entgegenwirkt. Diese Gegenkraft kann von einer Bedienperson und/oder einer Vorrichtung auf das Klemmhaltemittel ausgeübt werden. Hierfür kann das erste Klemmglied optional eine besonders gestaltete Betätigungsoberfläche aufweisen. Diese Betätigungsoberfläche kann das Ausüben der benötigten Gegenkraft erleichtern und ein ungewolltes Abrutschen verhindern. In a non-clamping state of the clamp holding means, the substrate can be inserted into and removed from the clamp frame, and in a clamped state of the clamp holding means, the substrate can be clamped in the clamp frame. In order to transfer the clamping holding means from the clamping state to the non-clamping state, the clamping section or the operating section of the first clamping member can be acted upon by a counter force clamping gap enlarging counteracting the biasing force of the elastic member. This counterforce can be exerted on the terminal holding means by an operator and / or a device. For this purpose, the first clamping member optionally have a specially designed actuating surface. This actuating surface can facilitate the exercise of the required counterforce and prevent accidental slipping.
In einer Ausgestaltung der Erfindung verbindet das Drehgelenk das erste Klemmglied lösbar mit dem zweiten Klemmglied. Die lösbare Verbindung ermöglicht eine einfache Montage bzw. einen einfachen Austausch des ersten Klemmglieds. Ein weiterer Vorteil ist, dass je nach Bedarf nicht alle zweiten Klemmglieder mit einem ersten Klemmglied verbunden sein müssen und/oder die Anzahl und/oder Konfiguration der ersten Klemm- glieder verändert werden kann. Dadurch kann z.B. die Anzahl der ersten Klennnnglieder an unterschiedliche Substratgrößen angepasst werden, indem erste Klemmglieder entfernt werden, die keinen Kontakt zum Substrat haben, oder zusätzliche erste Klemmglieder angebracht werden. Die Anzahl der ersten Klemmglieder an der jeweiligen Klemmleiste kann folglich variabel an die Anforderungen des Haltens und des Transportierens des Substrats und/oder an die Anforderungen eines nachfolgenden Prozesses angepasst werden, den das Substrat durchläuft. Die zweiten Klemmglieder, an denen kein erstes Klemmglied angebracht ist, können das Substrat im Fall eines im Wesentlichen horizontalen Transports als Auflagen stützen. In one embodiment of the invention, the rotary joint releasably connects the first clamping member to the second clamping member. The detachable connection allows easy installation or a simple replacement of the first clamping member. Another advantage is that not all second clamping members must be connected to a first clamping member as required and / or the number and / or configuration of the first clamping member can be changed. As a result, for example, the number of first Klennnnglieder can be adapted to different substrate sizes by first clamping members are removed, which have no contact with the substrate, or additional first clamping members are attached. The number of first clamping members on the respective terminal block can thus be variably adapted to the requirements of holding and transporting the substrate and / or to the requirements of a subsequent process that the substrate passes through. The second clamping members, to which no first clamping member is attached, can support the substrate as supports in the case of a substantially horizontal transport.
In einer vorteilhaften Weiterbildung der Erfindung weist das Drehgelenk einen drehwellenartigen Fortsatz an dem einen Klemmglied und eine korrespondierende Ausnehmung an dem anderen Klemmglied auf. Beispielsweise kann das Drehgelenk durch einen Fortsatz gebildet sein, der abschnittsweise einen kreisbogenförmigen Querschnitt aufweist. Der Fortsatz kann sich an dem ersten Klemmglied befinden und passt dann in eine korrespondierende Ausnehmung des zweiten Klemmglieds oder des Klemmrahmens. Alternativ kann er sich an dem zweiten Klemmglied oder an einer anderen Stelle des Klemmrahmens befinden und in eine korrespondierende Ausnehmung des ersten Klemmglieds passen. In an advantageous development of the invention, the rotary joint has a rotary shaft-like projection on the one clamping member and a corresponding recess on the other clamping member. For example, the rotary joint may be formed by an extension, which has a sectionally circular cross-section. The extension may be located on the first clamping member and then fits into a corresponding recess of the second clamping member or the clamping frame. Alternatively, it may be located on the second clamping member or at another location of the clamping frame and fit into a corresponding recess of the first clamping member.
In einer Ausgestaltung der Erfindung ist das zweite Klemmglied mit der Klemmleiste lösbar verbunden. So kann bei Bedarf das zweite Klemmglied an der Klemmleiste angebracht und auch wieder abgenommen werden. Der Bauteileinsatz wird dadurch optimiert. In one embodiment of the invention, the second clamping member is releasably connected to the terminal block. Thus, if necessary, the second clamping member attached to the terminal block and also removed again. The use of components is thereby optimized.
In einer alternativen, fertigungs- und montagetechnisch vorteilhaften Ausgestaltung der Erfindung ist das zweite Klemmglied ein einstückiger Abschnitt der Klemmleiste. Das minimiert die Anzahl erforderlicher Einzelbauteile. In an alternative, manufacturing and assembly advantageous embodiment of the invention, the second clamping member is an integral portion of the terminal block. This minimizes the number of required individual components.
In entsprechenden Ausgestaltungen der Erfindung weist der Rahmenkörper mindestens eine Verbindungsleiste auf, die mehrteilig und in ihrer Länge einstellbar ist, und/oder die Klemmleiste ist mehrteilig und in ihrer Länge einstellbar. Auf diese Weise kann der Klemmrahmen in seiner Größe eingestellt und an Substrate unterschiedlicher Größen angepasst werden, um diese zu halten. Die mehrteilige Klemmleiste und/oder mehrteili- ge Verbindungsleiste kann eine Dehnfuge aufweisen, die bei Bedarf einen thermischen Längenausgleich ermöglicht. Das Material der Verbindungsleiste und/oder Klemmleiste kann z.B. ein Kunststoff, insbesondere PVC, oder ein Metall, insbesondere Titan, oder eine Kombination solcher Materialien sein. In corresponding embodiments of the invention, the frame body has at least one connecting strip, which is multi-part and adjustable in length, and / or the terminal block is multi-part and adjustable in length. In this way, the clamping frame can be adjusted in size and adapted to substrates of different sizes to hold them. The multipart terminal block and / or multipart Ge connection bar may have an expansion joint, which allows a thermal length compensation if necessary. The material of the connecting strip and / or terminal strip can be, for example, a plastic, in particular PVC, or a metal, in particular titanium, or a combination of such materials.
In einer Ausgestaltung der Erfindung ist das elastische Element eine Feder oder ein Gummielement. Die Feder kann insbesondere eine Schraubenfeder oder Biegefeder sein. Das Gummielement kann insbesondere ein Gummizug oder Gummiband sein. In one embodiment of the invention, the elastic element is a spring or a rubber element. The spring may in particular be a helical spring or spiral spring. The rubber element may in particular be an elastic band or rubber band.
In einer weiteren, vorteilhaft einfachen Ausgestaltung der Erfindung ist das Gummielement ein O-Ring. Der Querschnitt des O-Rings kann eine an seine Funktion angepasste Form aufweisen. In a further, advantageously simple embodiment of the invention, the rubber element is an O-ring. The cross section of the O-ring may have a shape adapted to its function.
In einer weiteren Ausgestaltung der Erfindung weist das erste und/oder das zweite Klemmglied eine Aufnahmenut für das elastische Element auf, z.B. zur Aufnahme eines O-Rings als elastisches Element. Dies unterstützt einen sicheren Halt des elastischen Elements am betreffenden Klemmglied. Die Aufnahmenut kann eine Form aufweisen, die an die Form des Querschnittes und/oder an die Form der Auflagefläche des elastischen Elements angepasst ist. In a further embodiment of the invention, the first and / or the second clamping member has a receiving groove for the elastic element, e.g. for receiving an O-ring as an elastic element. This assists a secure hold of the elastic element on the respective clamping member. The receiving groove may have a shape which is adapted to the shape of the cross section and / or to the shape of the bearing surface of the elastic element.
In einer Ausgestaltung der Erfindung ist der Klemmrahmen rechteckig. Hierfür sind zwei Verbindungsleisten sich gegenüberliegend angeordnet und es sind zwei Klemmleisten sich gegenüberliegend angeordnet. Diese vier Leisten bilden zusammen den Klemmrahmen. Die zweiten Klemmglieder sind in Richtung der gegenüberliegenden Klemmleiste orientiert, indem sie z.B. in eine von dem Klemmrahmen gebildete Öffnung hinein von der betreffenden Klemmleiste abstehen. Damit kann ein Substrat in der Öffnung gehalten werden. Die zwei Klemmleisten weisen eine Mehrzahl der zweiten Klemmglieder auf, wobei die zweiten Klemmglieder in Richtung der gegenüberliegenden Klemmleiste orientiert sind. Die ersten Klemmglieder sind separate Bauteile und an allen oder an einem Teil der zweiten Klemmglieder der Klemmleisten zur Bildung des zugehörigen Klemmhaltemittels angebracht. In one embodiment of the invention, the clamping frame is rectangular. For this purpose, two connecting strips are arranged opposite each other and there are two terminal strips arranged opposite one another. These four strips together form the clamping frame. The second clamping members are oriented towards the opposite terminal block by e.g. protrude into an opening formed by the clamping frame of the relevant terminal block. Thus, a substrate can be held in the opening. The two terminal strips have a plurality of the second clamping members, wherein the second clamping members are oriented in the direction of the opposite terminal block. The first clamping members are separate components and are attached to all or part of the second clamping members of the clamping bars to form the associated terminal holding means.
Die erfindungsgemäße Transportvorrichtung weist mindestens einen erfindungsgemäßen Klemmrahmen und ein Rahmenfördermittel auf, das in Transportrichtung der Sub- strate umläuft und mit dem Klemmrahmen verbunden ist. Durch die umlaufend arbeitende Transportvorrichtung kann das Substrat besonders effizient einer Bearbeitungsanlage oder Bearbeitungsstation zugeführt und/oder durch eine solche hindurchgeführt werden. The transport device according to the invention has at least one clamping frame according to the invention and a frame conveyor, which in the transport direction of the sub-frame. strate and connected to the clamping frame. As a result of the circulating transport device, the substrate can be fed to and / or passed through a processing plant or processing station in a particularly efficient manner.
Vorteilhafte Ausführungsformen der Erfindung sind in den Zeichnungen dargestellt und werden nachfolgend beschrieben. Hierbei zeigen: Advantageous embodiments of the invention are illustrated in the drawings and will be described below. Hereby show:
Fig. 1 eine Perspektivansicht eines Klemmrahmens mit Klemmhaltemitteln, 1 is a perspective view of a clamping frame with terminal holding means,
Fig. 2 eine Ausschnittansicht eines Bereichs A von Fig. 1 , die ein einzelnes Klemmhaltemittel zeigt, FIG. 2 is a fragmentary view of a portion A of FIG. 1 showing a single clamp holding means. FIG.
Fig. 3 eine Seitenansicht des Klemmhaltemittels von Fig. 2 und Fig. 3 is a side view of the terminal holding means of Fig. 2 and
Fig. 4 eine ausschnittweise Perspektivansicht einer Variante des Klemmrahmens der 4 is a fragmentary perspective view of a variant of the clamping frame of
Fig. 1 bis 3.  Fig. 1 to 3.
Der erfindungsgemäße Klemmrahmen dient dazu, dünne flächige Substrate, insbesondere Leiterplatten, zu halten und den Transport von Substraten mit einer Transportvorrichtung zu ermöglichen. Entsprechend zeigen die Fig. 1 bis 3 einen Klemmrahmen, in dem ein Substrat 6 gehalten ist. Um das im Klemmrahmen gehaltene Substrat 6 zu bewegen, ist der Klemmrahmen Bestandteil einer Transportvorrichtung von herkömmlicher Bauart, die hier nicht weiter gezeigt ist. Der Klemmrahmen weist einen Rahmenkörper 1 auf, der über mindestens eine Klemmleiste 3 verfügt. In dem gezeigten Ausführungsbeispiel weist der Klemmrahmen zwei Klemmleisten 3 auf. Des Weiteren weist der Klemmrahmen mindestens ein Klemmhaltemittel 2 zum Halten des Substrats 6 auf, wobei das gezeigte Beispiel über mehrere Klemmhaltemittel 2 verfügt. The clamping frame according to the invention serves to hold thin flat substrates, in particular circuit boards, and to enable the transport of substrates with a transport device. Accordingly, FIGS. 1 to 3 show a clamping frame in which a substrate 6 is held. In order to move the held in the clamping frame substrate 6, the clamping frame is part of a transport device of conventional design, which is not shown here. The clamping frame has a frame body 1, which has at least one terminal strip 3. In the embodiment shown, the clamping frame on two terminal strips 3. Furthermore, the clamping frame has at least one clamping holding means 2 for holding the substrate 6, the example shown having a plurality of clamping holding means 2.
Das jeweilige Klemmhaltemittel 2 setzt sich aus einem ersten Klemmglied 8, einem zweiten Klemmglied 9, einem Drehgelenk und einem elastischen Element 14 zusammen, wobei das Drehgelenk von zugehörigen Teilen des ersten und des zweiten Klemmglieds 8, 9 gebildet ist. Das erste Klemmglied 8 weist einen Klemmabschnitt 10 und einen Bedienabschnitt 1 1 auf. Das zweite Klemmglied 9 ist an der Klemmleiste 3 des Rahmenkörpers 1 angeordnet und der Klemmabschnitt 10 des ersten Klemmglieds 8 liegt dem zweiten Klemmglied 9 gegenüber, wobei das zweite Klemmglied 9 mit dem ersten Klemmglied 8 zusammenwirkt. Das Drehgelenk verbindet schwenkbeweglich das zweite Klemmglied 9 mit dem ersten Klemmglied 8 unter Bildung eines Klemmspalts 7. Das elastische Element 14 spannt den Klemmabschnitt 10 des ersten Klemmglieds 8 gegen das zweite Klemmglied 9 klemmspaltverengend vor. The respective terminal holding means 2 is composed of a first clamping member 8, a second clamping member 9, a hinge and an elastic member 14, wherein the hinge of associated parts of the first and second clamping member 8, 9 is formed. The first clamping member 8 has a clamping portion 10 and an operating portion 1 1. The second clamping member 9 is on the terminal block. 3 arranged the frame body 1 and the clamping portion 10 of the first clamping member 8 is opposite to the second clamping member 9, wherein the second clamping member 9 cooperates with the first clamping member 8. The hinge pivotally connects the second clamping member 9 with the first clamping member 8 to form a clamping gap 7. The elastic member 14 biases the clamping portion 10 of the first clamping member 8 against the second clamping member 9 before clamping gap.
Im gezeigten Beispiel ist an jeder Klemmleiste 3 eine Mehrzahl von zweiten Klemmgliedern 9 einteilig in einer Reihe nebeneinanderliegend angeformt. Dabei weisen die zweiten Klemmglieder 9 eine Breite B auf und haben einen Abstand C voneinander, der vorzugsweise größer ist als die Breite B. In the example shown, a plurality of second clamping members 9 integrally formed in a row next to each other at each terminal block 3. In this case, the second clamping members 9 have a width B and have a distance C from each other, which is preferably greater than the width B.
In dem gezeigten Ausführungsbeispiel der Fig. 1 bis 3 stellt das Drehgelenk eine lösbare Verbindung zwischen dem ersten Klemmglied 8 und dem zweiten Klemmglied 9 dar. Das Drehgelenk beinhaltet einen drehwellenartigen Fortsatz 12 an dem ersten Klemmglied 8 und eine korrespondierende Ausnehmung 13 an dem zweiten Klemmglied 9, in die der Fortsatz 12 passt. Das Drehgelenk bzw. dessen Fortsatz 12 unterteilt das erste Klemmglied 8 in den Klemmabschnitt 10 und den Bedienabschnitt 1 1 . Der drehwellenartige Fortsatz 12 weist im Querschnitt die Form eines Kreisbogens auf und steht über die beiden äußeren Flanken des ersten Klemmglieds 8 axial vor. Die Ausnehmung 13 weist einen korrespondierenden kreisbogenförmigen Querschnitt auf. In dem gezeigten Ausführungsbeispiel ist die korrespondierende Ausnehmung 13 von einer über die Länge der Klemmleiste 3 hinweg durchgehend in der Klemmleiste 3 ausgebildeten Nut bereitgestellt. In the embodiment shown in FIGS. 1 to 3, the rotary joint constitutes a releasable connection between the first clamping member 8 and the second clamping member 9. The rotary joint includes a shaft extension 12 on the first clamping member 8 and a corresponding recess 13 on the second clamping member 9 into which the extension 12 fits. The hinge or its extension 12 divides the first clamping member 8 in the clamping portion 10 and the operating portion 1 first The rotary shaft-like extension 12 has the shape of a circular arc in cross-section and projects axially beyond the two outer flanks of the first clamping member 8. The recess 13 has a corresponding circular arc-shaped cross-section. In the embodiment shown, the corresponding recess 13 is provided by a over the length of the terminal block 3 across away formed in the terminal block 3 groove.
Des Weiteren ist der Rahmenkörper 1 in dem gezeigten Ausführungsbeispiel der Fig. 1 bis 3 rechteckig und weist zwei sich gegenüberliegende Verbindungsleisten 4 auf. Diese sind mit den beiden sich gegenüberliegenden Klemmleisten 3 z.B. jeweils einteilig verbunden. Die Verbindungsleisten 4 sind bevorzugt aus mehreren teleskopartig aus- und einziehbaren Teilen zusammengesetzt und dadurch in ihrer Länge einstellbar. In dem gezeigten Ausführungsbeispiel weist jede Verbindungsleiste 4 eine Dehnfuge 5 auf, um thermische Ausdehnungseffekte der Verbindungsleisten 4 zu kompensieren. In einer nicht gezeigten Variation des erfindungsgemäßen Klemmrahmens kann mindestens eine Klemmleiste 3 in analoger Weise mehrteilig ausgeführt sein, um sie in ihrer Länge variabel verändern zu können. Furthermore, the frame body 1 in the embodiment shown in FIGS. 1 to 3 is rectangular and has two mutually opposite connecting strips 4. These are connected in one piece with the two mutually opposite terminal strips 3, for example. The connecting strips 4 are preferably composed of several telescopically extendable and retractable parts and thereby adjustable in length. In the exemplary embodiment shown, each connecting strip 4 has an expansion joint 5 in order to compensate for thermal expansion effects of the connecting strips 4. In a variation, not shown, of the clamping frame according to the invention, at least one clamping strip 3 may be designed in several parts in an analogous manner in order to be able to variably change their length.
In dem gezeigten Ausführungsbeispiel der Fig. 1 bis 3 ist das elastische Element 14 ein O-Ring, der aus Gummi besteht. Dabei spannt das elastische Element 14 den Klemmabschnitt des ersten Klemmglieds 8 gegen das zweite Klemmglied 9 durch eine Vorspannkraft klemmspaltverengend vor. An dem zweiten Klemmglied 9 ist eine Aufnahmenut 15 angebracht, die den O-Ring daran hindert, vom Klemmhaltemittel 2 abzurutschen und dadurch das Klemmhaltemittel 2 nicht mehr vorzuspannen. Des Weiteren ist das erste Klemmglied 8, an dem der O-Ring angreift, so geformt, dass sich der Angriffspunkt des O-Rings am ersten Klemmglied 8 in Richtung des Drehgelenks 12 verlagert, wenn sich der O-Ring ungewollt aus seiner montierten Lage unter Verringerung seines Ringdurchmessers bewegt. In the embodiment shown in FIGS. 1 to 3, the elastic element 14 is an O-ring made of rubber. In this case, the elastic member 14 biases the clamping portion of the first clamping member 8 against the second clamping member 9 by a biasing force clamping gap narrowing. On the second clamping member 9, a receiving groove 15 is mounted, which prevents the O-ring from slipping off the terminal holding means 2 and thereby no longer bias the terminal holding means 2. Furthermore, the first clamping member 8, which is engaged by the O-ring, shaped so that the point of application of the O-ring on the first clamping member 8 in the direction of the pivot joint 12 shifts when the O-ring unintentionally from its mounted position below Reduction of its ring diameter moves.
Insbesondere aus Fig. 3 ist ersichtlich, dass der O-Ring in einer Ebene E1 liegt, die schräg zu einer Substratfläche bzw. Rahmenöffnungsebene E2 orientiert ist, d. h. mit dieser einen Winkel Ct größer als 0° und kleiner als 90° einschließt, wobei der Winkel Ct z. B. im Bereich zwischen 60° und 86° liegt. In particular from FIG. 3 it can be seen that the O-ring lies in a plane E1 which is oriented obliquely to a substrate surface or frame opening plane E2, ie. H. with this one angle Ct greater than 0 ° and less than 90 °, wherein the angle Ct z. B. is in the range between 60 ° and 86 °.
Des Weiteren sind die ersten Klemmglieder 8 in dem gezeigten Ausführungsbeispiel der Fig. 1 bis 3 als separate Bauteile ausgeführt und für alle zweiten Klemmglieder 9 des Klemmrahmens ist je ein erstes Klemmglied 8 montiert. Dabei werden die separaten ersten Klemmglieder 8 jeweils durch das elastische Element 14 an dem zugehörigen zweiten Klemmglied 9 gehalten. Furthermore, the first clamping members 8 in the illustrated embodiment of FIGS. 1 to 3 are designed as separate components and for each second clamping members 9 of the clamping frame, a first clamping member 8 is mounted. In this case, the separate first clamping members 8 are each held by the elastic member 14 to the associated second clamping member 9.
Der Klemmrahmen bildet eine Öffnung, in der das Substrat 6 gehalten ist. Die zweiten Klemmglieder 9 der Klemmhaltemittel 2 sind so orientiert, dass sie in die Öffnung hineinragen und in Richtung der gegenüberliegenden Klemmleiste 3 zeigen. Das Substrat 6 wird durch die von dem elastischen Element 14 aufgebrachte Klemmkraft sicher im Klemmspalt 7 der Klemmhaltemittel 2 gehalten. Zum Ein- und Ausbauen des Substrats 6 in das Klemmhaltemittel 2 bzw. aus diesem heraus, wird eine der Vorspannkraft des elastischen Elements 14 entgegenwirkende Gegenkraft auf den Bedienabschnitt 1 1 ausgeübt. Durch das Drehgelenk wird das erste Klemmglied 8 relativ zum zweiten Klemmglied 9 klemmspaltvergrößernd verschwenkt und das Substrat 6 kann aus dem geöffneten Klemmspalt 7 entnommen bzw. in diesen eingesetzt werden. The clamping frame forms an opening in which the substrate 6 is held. The second clamping members 9 of the clamping holding means 2 are oriented so that they protrude into the opening and point in the direction of the opposite terminal strip 3. The substrate 6 is securely held in the nip 7 of the clamp holding means 2 by the clamping force applied by the elastic member 14. For installing and removing the substrate 6 in the terminal holding means 2 and out of this, one of the biasing force of the elastic member 14 counteracting counterforce on the operating section 1 1 is exercised. By the hinge, the first clamping member 8 relative to the second Clamping member 9 pivoted clamping gap enlarging and the substrate 6 can be removed from the opened nip 7 and inserted into this.
Um die Klemmwirkung zu unterstützen, kann das zweite Klemmglied 9 und/oder das erste Klemmglied 8 eine dafür speziell gestaltete Form aufweisen, z. B. indem Kontaktflächen, mit denen das Klemmhaltemittel 2 gegen das Substrat 6 zur Anlage kommt, in ihrer Form optimiert sind. So verfügt das zweite Klemmglied 9 in dem gezeigten Ausführungsbeispiel der Fig. 1 bis 3 über einen Kontaktabschnitt 16, der die Kontaktfläche zum Substrat 6 reduziert. Korrespondierend ist das erste Klemmglied 8 derart gestaltet, dass sein Kontakt mit dem Substrat 6 demjenigen des Kontaktabschnitts 16 mit dem Substrat 6 genau gegenüberliegt. Hierfür ist eine schnabelförmige Ausgestaltung des ersten Klemmglieds 8 vorteilhaft, wie sie aus Fig. 3 ersichtlich ist. To support the clamping action, the second clamping member 9 and / or the first clamping member 8 may have a specially designed shape for. B. by contact surfaces with which the terminal holding means 2 comes to rest against the substrate 6, are optimized in shape. Thus, in the exemplary embodiment shown in FIGS. 1 to 3, the second clamping member 9 has a contact section 16 which reduces the contact surface to the substrate 6. Correspondingly, the first clamping member 8 is designed such that its contact with the substrate 6 is exactly opposite to that of the contact portion 16 with the substrate 6. For this purpose, a beak-shaped configuration of the first clamping member 8 is advantageous, as can be seen from Fig. 3.
In Fig. 4 ist ein Ausschnitt einer Variante des Klemmrahmens der Fig. 1 bis 3 in Perspektivansicht dargestellt, wobei zum leichteren Verständnis für identische oder funktionell äquivalente Elemente sich entsprechende Bezugszeichen verwendet sind und diesbezüglich auch auf die obigen Erläuterungen zum Ausführungsbeispiel der Fig. 1 bis 3 verwiesen werden kann. In dieser Ausführung steht ein insoweit modifizierter drehwellenartiger Fortsatz 12' des Drehgelenks nicht über die Flanken des ersten Klemmglieds 8' heraus. Zur Aufnahme des modifizierten drehwellenartigen Fortsatzes 12' sind korrespondierende individuelle Ausnehmungen bzw. Nuten 13' in einer zugehörigen Erhöhung 18 der Klemmleiste 3' gebildet. In dem gezeigten Ausführungsbeispiel ist die Breite der Erhöhung 18 im Bereich der Breite der zweiten Klemmglieder 9'. Wie in der Ausführungsvariante der Fig. 1 bis 3 sind zweite Klemmglieder 9' einteilig an der Klemmleiste 3' angeformt. Die zweiten Klemmglieder 9' aus Fig. 4 sind oberseitig flach, d. h. ohne den reduzierten Kontaktabschnitt 16. Des Weiteren ist im gezeigten Fall von Fig. 4 nur für eines der zweiten Klemmglieder 9' ein erstes Klemmglied 8' zur Bildung eines entsprechenden Klemmhaltemittels 2' montiert, wobei letzteres eine Aufnahmenut 17 für das elastisches Element 14 aufweist. In der gezeigten Ausführung ist in dieser Aufnahmenut 17 der O-Ring als das elastische Element 14 gehalten. Die jeweiligen zweiten Klemmglieder 9', für die kein erstes Klemmglied 8' montiert ist, dienen einem geklemmt gehaltenen Substrat 6 als im Wesentlichen horizontale Auflage. In einer nicht gezeigten Variante des erfindungsgemäßen Klemmrahmens sind die zweiten Klennnnglieder als von der Klennnnleiste getrennte Bauteile realisiert, die lösbar mit der Klemmleiste verbunden werden können. Dadurch kann der Bauteileinsatz optimiert werden, indem nur die tatsächlich zu Substratklemmzwecken erforderlichen zweiten Klemmglieder an der Klemmleiste montiert werden. In Fig. 4 is a detail of a variant of the clamping frame of FIGS. 1 to 3 is shown in perspective view, wherein for easier understanding of identical or functionally equivalent elements, corresponding reference numerals are used and in this regard also to the above explanations to the embodiment of FIGS 3 can be referenced. In this embodiment, a shaft shaft-like projection 12 'of the rotary joint modified in this respect does not protrude beyond the flanks of the first clamping member 8'. For receiving the modified rotary shaft-like extension 12 'corresponding individual recesses or grooves 13' in an associated increase 18 of the terminal block 3 'are formed. In the embodiment shown, the width of the elevation 18 in the region of the width of the second clamping members 9 '. As in the embodiment of Figs. 1 to 3 second clamping members 9 'integrally formed on the terminal block 3'. The second clamping members 9 'of FIG. 4 are flat on the upper side, ie without the reduced contact portion 16. Furthermore, in the case shown in FIG. 4, only one of the second clamping members 9' has a first clamping member 8 'for forming a corresponding clamping holding means 2'. mounted, the latter having a receiving groove 17 for the elastic element 14. In the embodiment shown, the O-ring is held in this receiving groove 17 as the elastic element 14. The respective second clamping members 9 ', for which no first clamping member 8' is mounted, serve a clamped held substrate 6 as a substantially horizontal support. In a variant, not shown, of the clamping frame according to the invention, the second Klennnnglieder are realized as separate from the Klennnnleiste components that can be releasably connected to the terminal block. Thereby, the use of components can be optimized by only the actually required for substrate clamping purposes second clamping members are mounted on the terminal block.
Des Weiteren kann in nicht gezeigten Varianten des erfindungsgemäßen Klemmrahmens das elastische Element welches die beiden Klemmglieder vorspannt, eine Feder, wie z. B. eine Zug-, Druck- oder eine Spiralfeder, sein. Furthermore, in not shown variants of the clamping frame according to the invention, the elastic element which biases the two clamping members, a spring, such as. B. a tension, compression or a coil spring, be.
Der erfindungsgemäße Klemmrahmen ist geeignet und dafür ausgelegt, mit einem herkömmlichen Rahmenfördermittel verbunden zu werden und damit eine Transportvorrichtung für das Substrat bereitzustellen. So kann die Klemmleiste oder die Verbindungsleiste ein Verbindungsmittel aufweisen, um den Klemmrahmen an z. B. umlaufenden Transportketten montieren zu können, so dass die Transportketten den Klemmrahmen zusammen mit dem Substrat in eine z.B. horizontale Transportrichtung befördern. Durch die Transportvorrichtung kann das im Klemmrahmen gehaltene Substrat, bzw. mehrere solche flachen Substrate in hintereinander angeordneten Klemmrahmen, einer Behandlungseinrichtung zugeführt und/oder durch die Behandlungseinrichtung hindurchgeleitet werden. The clamping frame according to the invention is suitable and adapted to be connected to a conventional frame conveyor and thus to provide a transport device for the substrate. Thus, the terminal block or the connecting bar having a connecting means to the clamping frame to z. B. to be able to mount circulating transport chains, so that the transport chains the clamping frame together with the substrate in an example. transport horizontal transport direction. By the transport device held in the clamping frame substrate, or more such flat substrates in successively arranged clamping frame, fed to a treatment device and / or passed through the treatment device.
Wie die oben erläuterten Ausführungsbeispiele deutlich machen, stellt die Erfindung einen Klemmrahmen für eine funktionssichere Handhabung von Substraten zur Verfügung, der in sehr vorteilhafter Weise nur eine geringe Anzahl von einfach herstellbaren Bauteilen benötigt und somit eine vereinfachte Montage und eine bedarfsgerechte Modifikation des Klemmrahmens erlaubt. Die Herstell kosten können durch die geringe Anzahl von Bauteilen gering gehalten werden. As the exemplary embodiments explained above make clear, the invention provides a clamping frame for a functionally reliable handling of substrates, which in a very advantageous manner requires only a small number of easily manufactured components and thus permits simplified assembly and modification of the clamping frame as required. The manufacturing cost can be kept low due to the small number of components.

Claims

Patentansprüche claims
1 . Klennnnrahnnen für eine Transportvorrichtung zum Transport von dünnen flächigen Substraten (6), insbesondere Leiterplatten, mit 1 . Klennnnanhnnen for a transport device for the transport of thin sheet-like substrates (6), in particular printed circuit boards, with
einem Rahmenkörper (1 ), der mindestens eine Klemmleiste (3) aufweist, und mindestens einem Klemmhaltemittel (2) mit  a frame body (1), which has at least one clamping strip (3), and at least one clamping holding means (2)
einem ersten Klemmglied (8), das einen Klemmabschnitt (10) und einen Bedienabschnitt (1 1 ) aufweist,  a first clamping member (8) having a clamping portion (10) and an operating portion (1 1),
einem zweiten Klemmglied (9), das an der Klemmleiste des Rahmenkörpers angeordnet ist und dem Klemmabschnitt des ersten Klemmglieds gegenüberliegt und mit dem ersten Klemmglied zusammenwirkt,  a second clamping member (9) which is arranged on the clamping strip of the frame body and opposite to the clamping portion of the first clamping member and cooperates with the first clamping member,
einem Drehgelenk, welches das erste Klemmglied in den Klemmabschnitt und den Bedienabschnitt unterteilt und das zweite Klemmglied mit dem ersten Klemmglied unter Bildung eines Klemmspalts (7) schwenkbeweglich verbindet, und  a pivot joint which divides the first clamping member into the clamping portion and the operating portion and pivotally connects the second clamping member to the first clamping member to form a nip (7), and
einem elastischen Element (14), das den Klemmabschnitt des ersten Klemmglieds gegen das zweite Klemmglied klemmspaltverengend vorspannt.  an elastic member (14) biasing the clamping portion of the first clamping member against the second clamping member clamping gap narrowing.
2. Klemmrahmen nach Anspruch 1 , dadurch gekennzeichnet, dass das Drehgelenk das erste Klemmglied lösbar mit dem zweiten Klemmglied verbindet. 2. clamping frame according to claim 1, characterized in that the hinge connects the first clamping member releasably connected to the second clamping member.
3. Klemmrahmen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Drehgelenk einen drehwellenartigen Fortsatz (12) an dem einen Klemmglied und eine korrespondierende Ausnehmung (13) an dem anderen Klemmglied aufweist. 3. clamping frame according to one of the preceding claims, characterized in that the rotary joint has a rotary shaft-like extension (12) on the one clamping member and a corresponding recess (13) on the other clamping member.
4. Klemmrahmen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das zweite Klemmglied mit der Klemmleiste lösbar verbunden ist. 4. clamping frame according to one of the preceding claims, characterized in that the second clamping member is releasably connected to the terminal block.
5. Klemmrahmen nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass das zweite Klemmglied ein einstückiger Abschnitt der Klemmleiste ist. 5. clamping frame according to claim 1 to 3, characterized in that the second clamping member is an integral portion of the terminal block.
Klemmrahmen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass Clamping frame according to one of the preceding claims, characterized in that
der Rahmenkörper mindestens eine Verbindungsleiste (4) aufweist, die mehrteilig ist und in ihrer Länge einstellbar ist, und/oder  the frame body has at least one connecting strip (4), which is multi-part and adjustable in length, and / or
die Klemmleiste mehrteilig ist und in ihrer Länge einstellbar ist.  the terminal block is multi-part and is adjustable in length.
Klemmrahmen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das elastische Element eine Feder oder ein Gummielement ist. Clamping frame according to one of the preceding claims, characterized in that the elastic element is a spring or a rubber element.
8. Klemmrahmen nach Anspruch 7, dadurch gekennzeichnet, dass 8. clamping frame according to claim 7, characterized in that
das Gummielement ein O-Ring ist und/oder  the rubber element is an O-ring and / or
das erste und/oder das zweite Klemmglied eine Aufnahmenut (15, 17) für das elastische Element aufweist.  the first and / or the second clamping member has a receiving groove (15, 17) for the elastic element.
9. Klemmrahmen nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass 9. clamping frame according to one of the preceding claims, characterized in that
der Klemmrahmen rechteckig ist und zwei gegenüberliegende Verbindungsleisten und zwei gegenüberliegende Klemmleisten aufweist,  the clamping frame is rectangular and has two opposite connecting bars and two opposite clamping bars,
die zwei Klemmleisten jeweils eine Mehrzahl der zweiten Klemmglieder aufweisen, wobei die zweiten Klemmglieder in Richtung der gegenüberliegenden Klemmleiste orientiert sind, und  the two clamping strips each have a plurality of the second clamping members, wherein the second clamping members are oriented in the direction of the opposite terminal block, and
die ersten Klemmglieder separate Bauteile sind, die an allen oder an einem Teil der zweiten Klemmglieder der Klemmleisten zur Bildung des zugehörigen Klemmhaltemittels angebracht sind.  the first clamping members are separate components mounted on all or part of the second clamping members of the clamping bars to form the associated terminal holding means.
Transportvorrichtung zum Transport von dünnen flächigen Substraten, insbesondere Leiterplatten, aufweisend Transport device for transporting thin sheet-like substrates, in particular printed circuit boards, comprising
mindestens einen Klemmrahmen nach einem der vorhergehenden Ansprüche und ein Rahmenfördermittel, das in einer Transportrichtung der Substrate umläuft und mit dem Klemmrahmen verbunden ist.  at least one clamping frame according to one of the preceding claims and a frame conveyor, which rotates in a transport direction of the substrates and is connected to the clamping frame.
PCT/EP2017/070333 2017-08-10 2017-08-10 Clamping frame and transport device for transporting substrates WO2019029813A1 (en)

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EP17758083.4A EP3666049B1 (en) 2017-08-10 2017-08-10 Clamping frame and transport device for transporting substrates
PCT/EP2017/070333 WO2019029813A1 (en) 2017-08-10 2017-08-10 Clamping frame and transport device for transporting substrates

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EP3666049B1 (en) 2021-09-29

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